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Puzzles & Computer
Rush hour


Your car's been parked in the garage. You would like to leave, but other vehicles are in your way...
Backtracking algorithms


How to use a computer to solve a problem in an intelligent way, or make it search to the best solution?
Abstract jigsaw puzzles


Jigsaw puzzles are popular among young and old. When pieces have a mathematical shape they may give a bigger challenge.
Sudoku


Sudoku puzzles became very popular over the last decade. Here are some hints for beginners.
Mazes and Labyrinths


You can use the computer to solve puzzles, but also to create them!
Here is a small selection of mazes, made by a computer program.
Numbers (from Numbers & Letters)



Around 1980 there was a TV-quiz 'Numbers & Letters'.
The part 'Numbers' can now be played online against the computer.
Nature images
Wild Orchids

Lady's-slipper orchid
Tropical, cultivated orchids are very familiar ... often at our own windowsill. They also live in the wild and even in the cooler zones. There exist more species than you'd think, but you'll rarely find any.
Butterflies

california sister butterfly
Butterflies are symbolic for positive emotions of people. Unfortunately many species of butterflies are vulnerable for changes in their environment.

Music
Music in 7/4 rythm

We all know the rythm of seven days in a week ... in music it sounds like this
.

Questions or comments are welcome, mail to :